Max Size: 7.5cm

Peacock Gudgeon (Tateurndina Ocellicauda)

The Peacock Gudgeon is an amazingly attractive, peaceful and unique freshwater fish. Not only do they look amazing, but they are hardy and easy to look after. They do not need certain conditions that are challenging to maintain, and they get along with plenty of other species making them a great member of the community aquarium.

You can keep the Peacock Goby in small groups without any problems. Of course, they will quarrel amongst themselves, but this is always limited to flaring and displaying and makes for a more delightful extravaganza than if you were to keep a couple.

Ideal tankmates for Peacock Gobies could include Rainbowfish from the genus Pseudomugil, Rasboras, Tetras, Corydoras Catfish, and other small peaceful species. However, if you would like to keep them with slightly more territorial fish, such as Dwarf Cichlids, you will need to make sure you provide plenty of tank space.

Peacock Gobies prefer soft and slightly acidic water and plenty of sheltered areas. It would be best to use a dark substrate and floating vegetation as this will help your fish feel safer, leading to a better display of colour. These Gobies require plenty of hiding places, so adding driftwood or bogwood to the aquarium will be greatly appreciated, as would areas of dense planting. Having hiding places in the aquarium will bring your fish out more often.

These fish do not do well in an aquarium with a fast water flow, so it would be best to use gentle filtration. Also, these fish fair better in spotless water, so make sure you perform frequent water changes. Lastly, Peacock Gobies are brilliant jumpers; therefore, you will need a tight-fitting lid on their aquarium.

These fish have elongated bodies. Their heads are rounded, and adult males may develop a nuchal hump on their foreheads, making their round shape even more pronounced. In addition, These fish have a blueish-silvery body and display pink, black and yellow marks along the body, and the fins have a bright yellow thick edge. Females also have a thinner strip of black on top of the yellow portion of the fins.

The sides of their body sport red dotted stripes that run vertically down the fish's entire length, and they also have a yellow abdomen. On either side of the body, there is a single, large black spot at the base of the caudal fin, and this distinct characteristic gives them the peacock name.

Tank Mates

10 ideal tank mate ideas for the Peacock Gudgeon include:

Blue Purple Emperor Tetra(Inpaichthys kerri)
Cardinal Tetra(Paracheirodon axelrodi)
Coral Red Pencilfish(Nannostomus mortenthaleri)
Empire Gudgeon(Hypseleotris compressa)
False Armatus Corydoras(Corydoras sp)
Honey Blue Eye Rainbowfish(Pseudomugil Mellis)
Ornate Rainbowfish(Rhadinocentrus ornatus)
Popondetta Blue Eye Rainbowfish(Pseudomugil connieae)
Purple Pencilfish(Nannostomus rubrocaudatus)
Red Belted Goby(Sicyopus zosterophorus)
Quick Facts
Scientific NameTateurndina Ocellicauda
Year Described1955
Other NamesPeacock Goby
OriginsAustralia, New Zealand, Papua New Guinea
Aquarium LevelBottom - Middle
DifficultyBeginner - Intermediate
Best kept asGroups 6+
ReproductionCave spawning
Lifespan4 - 5 years
Water Parameters
Water TypeFreshwater
PH6.0 - 7.8
GH5 - 12
72 - 79℉
22.2 - 26.1℃


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Peacock Gudgeon Fry
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Peacock Gudgeon - Tateurndina ocellicauda - Freshwater Gudgeon Aquarium Fish Profile & Care Guide

Natural Habitat

Peacock Gudgeons are endemic to the eastern part of Papua New Guinea in Oceania. However, you can also find them throughout Australia and New Zealand. These fish inhabit soft and acidic waters in slow-moving lowland streams and rivers as well as shallow still ponds that are warm and loaded with dense vegetation.

Sivoli River


It can be very challenging to feed the peacock gudgeons as they are very picky eaters; however, they occasionally take good quality dried food but seem to prefer decapsulated brine shrimp and almost always prefer live and frozen foods. Providing them with live foods such as bloodworm, daphnia, and brine shrimp will help your fish maintain good health and colour and keep them happy.

Sexual Dimorphism

It is relatively simple to distinguish between a male and female Peacock Goby. The males will be somewhat more colourful and will develop a large nuchal hump on their foreheads and will be slightly bigger than the females. In contrast, females will have a more vividly coloured yellow belly and display a black bar running along the edges of their anal fins. The females also have a more contoured body shape than the round body shape seen in males.


Peacock Gudgeons are relatively easy to breed. These fish usually form a connection and create partners quickly. If you have a group of fish, identify a couple and move them to a separate breeding tank.

The breeding tank will need to contain some caves or similar. You can form an artificial cave with a simple PVC pipe or a terracotta pot.

To induce the breeding process, you will need to perform a profound water change and provide your couple with a sufficient amount of protein-rich live and frozen food. Then, when the males are ready to breed, they will display a dancing ritual for the female swimming around the cave entrance and flash his pectoral fins.

If the female accepts him, she will swim into the cave and lay around 50 to 100 eggs. The eggs are adhesive so that she may lay them on the sides of the cave or the ceiling. After she has finished laying her eggs, she will leave.

The male will then take over; he will fertilise the eggs and care for them as they incubate. You can see him fanning the eggs and defending the area frantically.

Around 8 to 10 days later, the eggs will start to hatch. A few males may stick around to make sure the small fry consumes their yolk sac; however, most will leave and let the fry fend for themselves.

Once the fry is able to fend for themselves, you can remove the male and female adult fish from the breeding tank.

Peacock Gudgeon fry grows relatively slowly. You will need to feed them with infusoria or powdered food until they are big enough to eat baby brine shrimp or microworm. It will take several weeks until they can swim freely, so keep a careful eye out and implement a constant food supply to help them grow.

Other Gobies of interest

Bumblebee Goby(Brachygobius doriae)
Empire Gudgeon(Hypseleotris compressa)
Golden Malili Goby(Mugilogobius rexi)
Red Belted Goby(Sicyopus zosterophorus)
Date Added: 15/09/2020 - Updated: 06/06/2022 13:16:48